Tiangong-1

Tiangong-1 is an experimental testbed to demonstrate the rendezvous and docking capabilities needed to support a space station in a low earth orbit.

source BBC

Useful Links:

BBC news article: http://www.bbc.co.uk/news/science-environment-15112760
Wikipedia Article: https://secure.wikimedia.org/wikipedia/en/wiki/Tiangong_1